Take absolute rest for 3 days.
Review at 3 days by moving knee.
Apply ice packs,3-4 times over the operated area.
If there is no locking or pain then ok.
Else can do a repeat MRI to confirm if there is a damage or not , but do it only if the symptoms persist.
Next Steps
Consult online
Health Tips
Give it rest and time to heal .
Minor injuries may happen but they get healed with rest.